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9 terms

rules for determining oxidation number

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the oxidation number of any uncombined element is...
zero
the oxidation number of a monatomic ion equals...
the charge on the ion
the more electronegative element in a binary compound is assigned the number equal to the charge it would have...
if it were an ion
the oxidation of fluorine in a compound is always...
negative one
oxygen has an oxidation number of negative two unless it is combined with F, when it is...or it is in a peroxide, when it is...
plus two, negative one
the oxidation of hydrogen in most of its compounds is plus one unless it combined with a metal in which case it is...
negative one
in compounds, the element of groups 1 and 2 as well as aluminum have oxidation number of...
plus one, plus two, and plus three respectively
the sum of the oxidation numbers of all atoms in a neutral compound is...
zero
the sum of the oxidation number of all atoms in a polyatomic ion equals...
the charge of the ion